Improvement in sulky-plows



PATENT OrrIc.

GILrIN MOORE, OF ROOK IsnAND, ILLINOIS.

IMPRoi/EMi-:NT 1N suLKv-PLows.

Specification forming part of Letters Patent No. 164,929, dated June'29, 1875; application filed s March 25, 1875.

To all whom it may concern:

Be it known that I, GILPIN MOORE, o Rock Island, in thegcounty of Rock Island and State of Illinois, have invented certain new and useful Improvements in Flows; and I do hereby declare that the following is a full,

it pertains tomake and use the same, reference being had to the accompanying drawing,

and to the letters ot' reference marked there' on, which form-a part of this specification.

My invention relates to improvements in that class of sulky-plows in which is used a crank or bent axle to support the wheels and plow. It has for its object to furnish a plow which will be simple in structure, free from complicated systems of gearing, or levers being operated by a single lever, and which will possess strength, durability, and ase in operation, wherein the axle will be so constructed and arranged that the wheels will be exactly balanced in their movements,`one to the other on the center of motion; whereinthe driver, in raising or lowering the plow,does not raise or support any portion of his own weight, wherein, with a given movement ot' the single operating-lever, a greater degree of vertical movement or travel of the wheel-centers ot' the axle is secured than is accomplished in ordinary plows, maintaining the plow at all times in a level or horizontal position; and wherein the angle of the bottom ot' the sole-plate may be readily adj usted,\all ot' which 'will be hereinafter fully explained.

In the drawings, Figure l is a side elevation, and Fig. 2 a plan view, of my improved plow. Fig. 3 is an enlarged view otthe hinged plate, to which is secured the beam Ot' the plow. Figs. 4, 5, and 7 are plan, end, and perspective views of the crank-axle, with the extensions which support the wheels removed in the last two and Fig. 6 is the arch or frame 'which supports the drivers seat, and on which are the` journals on which the crank-axle rotates. r

A is the plow, and B the beam. C is the crank-axle. It is formed as shown, with the longer and shorter arms c c1 connected by the bar c2. The outer ends, at Z o, are the wheelcenters, the wheels being attached thereto and supported thereon by suitable'projections or spindles S S.` It has a center of motion in the line x x, Figs. 2, 4, and 7, and at c', Fig. 5, on which it rotates in raising and lowering the plow, and on which the wheels are balanced, one to the other, as hereinafter explained. The arm c is inclined downward, and the arm cl upward, at such anglefas to bring the wheelcenters lo diametrically Opposite to each other, and at equal distances from the center of motion a: x, and at equal distances from the first. in rear, the latter forward of a vertical line,

s t, passing through the center of motion, so that a circle described about the line .c x, with a radius equal to c Z or i o, will intersect the lines u o, y z, drawn parallel to a' .c through the wheel-centers l o. It will be readily seen that this construction and arrangement exactly balances the wheels It It on the center ot' :motion of the axle C, and" that the movement or travel of the wheel-centers, in raising or lowering the plow, will be in the circumference of the circle, as indicated in Fig. 5. The wheel-centers lo are each placed from thevertical line s t a distance equal to one-eighth of the circumference of said circle, which arrangement admits of a movement of said'centers from l to 7c and o to n-one-fonirth of the entire circumference-.with slight variation or deflection from a perpendicular, so that it will be seen with any given movement of the operating-lever a greater vertical travel Of both wheels is secured than is accomplished in any other plow ot' this class. The arms c cl are connected with the center ot' motion by suitableV castings or lugs c3 c, journaled on projections or short axles on the frame or arch hereinafter described. F is the frame or arch, on the top ot' which ismounted the drivers seat Q. It is provided with the short axles 2 3,`which tit into the bearings in the lugs 03e, and about which the axle C rotates.

It will be seen that, by reason of the axles 2 3, which support the frame F, being in the center ot' motion of the axle C, thedriver-will have no part of his own weight to lift or support in raising or lowering the plow. It will be further seen that, by reason of the equalized or balanced movement of the wheels, the plow will be at all times preserved in a level or horizontal position.

G is a hinged plate, to which the beam of the plow is secured. It is supported with capabilityot'vertical rotary movement on the rod b, passing through the lugs g g, and also through the rear ends of the arms c c1 ot' the crank-axle C. It is provided at its front and rear wit-h projections a a', between which the beam B passes. H is a stud passed through the beam B, and projecting on either side, the

readily be reversed, the former being secured to the plate G and the latter to the beamB,

and the same results accomplished, the ybeam being thus tilted to either side for the purpose of adjustment of the angle of the sole or bottom of the plow.

The beam is held in the desired yposition, when adjusted, by tightening the nuts of the bolts f,`which are fixed to the 'plate G, and "pass through the retaining-plate lf/placed on the upper surface of the beam.

To the casting c4 I attach a lever-arm, O, which passes up, and is held in position by the side of the drivel-s seat by means of the segment E, bolted to the frame J, Vto which the tongue L is att-ached; the lever AO being provided with a stud or projection, which enters one or other of the openings in the arch when the lever is required to be kept in any given position, but when the lever is to be moved the same is simply sprung alittle toward the driver, when it can be readily' moved j in either direction.

'D' is a bent arm attached Y'to the arch'piece F, and serves as a support for the feet of the driver. It is arranged far enough above the beam B to admit ot' the turning up of the latter sufficient to run the plow out of the ground.

,The parts being in the position shown in Fig. 2, when it is required toA raise the plow, the

lever O is turned over to the right, as indi- 'c c1 ofthe crank-axle C being of different lengths, as shown, the extensions S S to the short axles 2 3, and the peculiar construction and arrangement of the parts, a compound motion is com municated to each of the wheels, which, while it raises the plow, keeps the frame and plow in a horizontal position, each of the wheels having an equal vertical motion communicated to it.

When it is desired to lift the plow entirely out of the ground for any purpose it is only necessary to turnV the lever O over to one ot' the openings ornotches at e, which will bring the crosspece c2 against and force upward the front end of the beam B, thereby inclinin g the point of the plow upward sufficiently to cause it to run out of the ground.- T he plate G being hinged to theV axle C, hereinbefore explained, readily admits of and adjusts itself to this movement, while at the same time and with same movement of lever -the wheels will be preserved onthe same horizont-al plane'or level, and the vertical position of the'plow and frame maintained.

When it is desired to throw the plow deeper into the ground the lever O is turned in the opposite direction, thereby causing the axes ot' wheels and the bottom ot' the plow to be thrown away from each other, and as a consequence causing the plowlto. cut deeper. The plow is locked at any desired depth by the projection on the lever O entering a proper opening in the segment E.

Having described my in vention,what I claim, and desire to secure by Letters Patent, is-' 1 In combination with a plow-beam and carrying-plate, the wedge-shaped projections I, inclined in opposite directions, to tilt the plowlaterally, substantially as shown and specified.

2. lIn a sulky-plow7 the crank-axle G, having the arms c cl arranged and pivoted to the arch or frame F, and connected with and supporting the axes of the wheels R R eccentrically, substantially in the manner and for the purposes described.

3. The plate G, having the projections a' a a' a and inclines I, and hinged to the arms c c of the crank-axleQ, substantially as shown, and for the purposes specified.

4. The combination, with the beam B, of the plate G, provided with inclines I and proj ections a a', substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my ownlI hereto my signature in presence ot' two witnesses.

GILPIN MOORE.'

Witnesses: i

EDWARD D. SWEENEY, CHARLES L. WALKER. 

